Frictional swing-sash locking fixture



April 20 1926.

5. s. WILEY FRICTIONAL SWING SASH LOCKING FIXTURE Filed August 15, 1924 Patented 12G, litiifiti.

GEORGE G. WILEY, OF CBI'TCAGG,ILLINOIS;

1 time (I an s AE-SEEG I'IQB) IEO fiTREETEE-AMET VIEIGHING & RECORDING CQMFAIFIY, F GHIQAGO, ILLINOIS, AGORFOH'AEIUN 5036 ILLINOIS.

FBICTIONAL SWENG-SASH LOCKING FIXTURE.

Application filed August 15, 19534. Serial No. 732,162.

. useful Improvements in Frictional Swing- Sash Locking Fixtures, of which the following is a specification.

This invention has for'its object to provide a fixture for swing-sash windows and for doors which will permit the sash or door to be swung to any desired position and will frictionally retain it in such position against the action of air currents tending to swing the same to other positions.

A further object of the invention is to provide a fixture, adapted to function as aforesaid, which is simple, light, easily mounted on the sashes or doors and their frames, and which occupies minimum space besides being of neat appearance.

A further object of the invention is to provide a frictional fixture of the type specified wherein the frictional resistance to complete r closure of the window from an open position,

is overcome to the extent necessary to prevent the window from springing back to a slightly open position following closure thereof.

A suitable embodiment of the invention is illustrated in the accompanying drawings, wherein Fig. 1 is a perspective view of a fixture, constructed in accordance with the invention, mounted on window frame and window sash, the latterbeing shown in open position.

Fig. 2 is a top plan view of the mounted fixture, a part of the window-casing being shown in section.

Fig. 3 is a sectional view on the line 3-3 of Fig. 2.

The said fixture comprises a pair of opposed circular disks A and B, having slightiy dished opposed middle portions and which are equipped with integral radial arms 0 and D, respectively, said disks having central openings for the passage of the pivot element E for pivotally associating the same. The pivot element E includes a threaded shank portion F to receive the nut G for a justing the pressure exerted by the spring H upon the disks A and B for resisting free relative rotation of the latter. The spring H includes the central or hub portion provided with an opening for the passage of the pivot element E, and a plurality of radial ogee curved arms '1 hearing at their end por- Lions upon one of said disks. A washer J prefe'raliily interposed between the nut G and said spring. Y

The arm C of the disk A is of considerably greater length than the arm '1) of the disk B, both said arms being pivotally secured at their outer ends toone flange of each of two L-shaped brackets K and L, respectively, the bracket K for the arm C being secured to the window or door-frame M and the bracket L for the arm D being secured to, preferably, the top rail of the sash or door N. The said arms are offset slightly from the plane of the contacting surfaces of the disks so as to permit them to" overlap each other when the sash is in closed position, without coming into surface contact with each other.

When the window or door is closed, the bracket L will be disposed between the bracket K and the disks A and B,the stems O and D being then disposed at a'very acute angle to each other, the whole fixture being then disposed in close proximity to a face of the sash or door and also closely adjacent to the top of the window-casing for protection against the weather by the latter, the fixture being most generally applied to inwardly swinging windows and doors and, therefore, disposed outwardly of the sash or door.

It will be obvious that as the sash is moved from open to closed position, the pivotal movement of the longer arm with respect to its bracket will be far in excess of that of the shorter arm, whereas, as the sash approaches closed position the pivotal movement of the shorter arm with respect to its bracket will gradually exceed that of the longer arm and through theiinal substantially five degrees of closing movement of the sash the longer arm will remain substantially inert. relative pivotal movement of the disks is, of course, constant and tends to spring the longer arm to an extent which causes the sash to spring back slightly from closed position. A stop 0 is, therefore, provided on the bracket K in the path of the arm C to limit its pivotal movement and thus permitthe sash to be moved and retained in final closed position. The said stop 0 also serves to effectually determine the relative posi tions of the brackets K and L on the window frame and sash in installing the device as,

The frictional resistance to r by throwing the arm G into contact with the stop, the person installing the fixture need only apply the same to the Window when the sash is fully closcdin order to determine the points at which the fastening screws must enter the casing and sash.

Obviously, While it is most convenient to provide the stop 0 on the bracket K, the same may be otherwise applied to perform its first mentioned function.

I claim as my invention p v a a A swing-sash fixture comprising two circular disks havingoppositely dished central portions and central openings, a pivot bolt passing through said openings, a pluralarmed fiat spring having a central opening "for the passage of the threaded shank of said bolt and bearing at the ends of its arms upon the peripheral portion of onesof said disks,

a nut on said bolt for adjusting the pressure exerted by said spring and retaining the same in position a radial arm integral with and extending from the circumferential edge of each of said disks and slightly ofiiset from the plane of the contacting faces of said disks to permit said arms to overlap Without coming into contact With each other, one or". said arms being about tWice the length of the other thereof, a bracket adapted to be mount ed on a Window casing, and a bracket adapted to be mounted on a sash, the longer arm pivotally connected With the first named bracket and the shorter arm with the other bracket, the latter adapted to be mounted on the sash to occupy a position between the disks and the bracket mounted on the casing.

GEORGE e. WILEY. 

